The most common solution I see to this problem is a "drop library".Anytime someone with upload access uploads a file into a designateddocument library, an event handler fires and moves the document to adifferent document library where the "uploader" only has read access. Ifthey attempt to upload a document that is already there, the upload willfail. The event handler can take whatever action you'd like it toincluding sending an email to the "uploader".

Once again, the SharePoint Approval Manager would be a good startingplace for this kind of solution. There is also an event handler toolkitthat gives you a similar sample solution.

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